Globe or shade holder



April 22, 1930. N, c; PETRlLLQ n 1,755,837

GLOBE 0R SHADE HOLDER Filed May 31, 1929 "atented Apr. 22, y Q

UNirn i STAT s J NICOLA C. PETRLLO, OF ST. LOUISYMISSOUR 1 GLOBE onSHADE :trotinen` Application' inea May s1,

The object of my invention is to in ake a globe or shade holder to beused principally for large globes or shades, such as are used for streetlights in cities.` A further object.

areinmost instances large and expensive. p

l The breakage loss is very great in actual use.

The globe or shade must be removed at regular intervals in order tocleanthe shade or globe and in order to replace burnt out electric lightbulbs. The globes or shades are supported in supports, which in turn aresecured to the top of posts. The actual. securing means between the postand the globe or shade are screws, which pass through the support orbase and come into frictional engagement with the globe or shade. Theglobe cr shade must be held rigid in the base.v This requires that thescrews be drawn tightly. againstthe globe or shade. In practice thescrews althoughv made'of brass or other nonfrusting material corrode, sothat they may knot be turned with the fingers. In this condition itrequires a pair of pliers to turn the screws. When the pliers are usedfor n this purpose, it is not possible to determine when the screws aresufciently tight. One or two turns of any of the screws, after the screwis in positive contact withthe shade. or globe, will crack the lowerflange ofthe globe or shade, after which the globe or shade must bereplaced, because it is unsafe to use such a globe or shade having sucha fracture. At ythe fracture, the globeV subsequently breaks and theglobe falls from its base. The specific purpose of my invention is toprevent the cracking ofthe lower flangey of the globe or shade byintroducing a split ring against which the tightening screws 'come incontact. By this means in the ordi-y nary tightening vof the screws, theflange of the globe or shade will not be broken. Furthermore by myconstruction the pressurey on the globe at its lower flange is uniformover its entire periphery. This prevents the cracking .of the'V globedue to unequaled 50 strains to which the lower flange ofthe globeposition.

in two` parts secured together by the hinge 1929. Serial N o. v367,1-732is subjected when the screws rcomein. direct contact'withthe globeporshade.l Further- Y more l have provided'lmeans for adjustingk the lengthofthe split ring to take care of Athe slight variation in the diameterofthe lower flange of the`globe or shield.

f `My device may be made of few and simple lparts that lend themselvesAreadily to multi` le production. e

llffiththese and other objects inrview'my invention has Arelation tocertain novel features of construction and arrangement fof parts aswillbehereinafter more fully del Y. i

scribed, pointed out in the claim and illustrated in the drawing, inwhich- Y Fig. 1V is a L iragmental front elevationof a globe or shieldwith 'my support therefor.I

' f. Fig. 2 is a sectional plan on theline ofFig;y 1. l` Y Y Fig. Sis-afragmental vsectional elevation onthe line 3-3 of Fig. 2. p

Fig. 4 is a plan viewv of the annular disc used in my device `partly insection in itsopen Fig. 5 is an enlargedfragmental plan of the means ofconnectingv the ends of the an-' nular disc yshown in Fig. 4C. y p

' lFig. 6 is afragmental sectional elevation onthe line 6-6 of Fig. 5. j.Y

Numeral Y7 Vindicates the globelor shade. Numeral 8 indicates the baseor supportl for the globe 7. rlhe base or support 8 is annu'-` lar inshape having the upper internal flange` 9 and the outer wall 10 formingthe annular recess 11.`v Numeral 12 designates an annular dependingyflange positioned below the: an:y nularrecess 11. `The base orfsupport8 is sel cured to arpole, not shown, by means of the yannulardependingflange 12. On the lower portion ofthe globeor` shade ..7 isformed the 0 conventional annular ange 13, which irests v inthe vannularrecess 11. Radial tapped holes 14 areformed. inthe outer wall 10. Inthese holes are placed in threaded engagement the screwsl. In'Fig. '2,four such screws are 95' shown. Numeral 16 designates a split ring ofsubstantially the same diameter lon the annular iange 13.` The splitring 16 is formed 17. Numeral 18 designates the lock generally 19C forselectively securing the free ends of the split ring ltogether. The lock18 is formed as follows:

c Numeral 19 designates a clasp in threaded enga-gement in one ofthefree ends of the split ring 16. By means of the threads on the claspl9,it maybe screwed in and out of the-end of ythe-split -ring 16. VNear thefree end of the'clasp 19 is formed the notch 20. In the other free endof the split ring 16 is secured spring 21, by means of the rivet 22. Thefree end of the spring 21 is bent at right angles inwardly into the slot23 formed in the split ring 16. The spring 21 is norinally in theposition showninFigG7 that isili-engagement inthe notch'20 in the clasp19. V-l.\lt`irneral 24kV designates a cylindrical hole 'fornedginthe'end and extending circumferentially inthe Vsplit ring16. It will beseen that when the clasp 19 screwed, so that the notch 'faces outwardlyand the clasp 19 is .inserted inthe cylindrical hole 24, that the endsvofthe split ring 16 will be locked together by reason of the notch 20becoming enga-gedwth the'free end of the spring 21. In .order todisengage the free ends of the split ring 1 6, it becomes necessary topress the spring-'21'outwardly out of engagement with thenotch 20,Invorder to facilitate this operation the slot 25 is provided. When thesplit ring 16 is placed in the Vannular flange 13 of the globe 7 asshown in Eig,y 3,thescrews 15 are tightened into the externalcircumferential slot 26 formed in the lf split Aring 16. By this meansthere is no contact between the screwsl `and the annular flange 13, thecontact being between the split rin-g 16 and the annular flange 13.

What I claim and mean to secure by LettersPatentis c Y YAsplitring`hingedly secured together at two of its free ends and having a lockingdeviceysecured at its other `two free ends, said lockingl devicecomprising a spring secured tosaid split ring and having its free endnormallyy penetrating into a slot in said split ring, formed in' thesame end of the split ring in communication with the slot formed in saidsp-litfring, a clasp in threadedengagement Y int-the other'free end ofsaid split ring', said 'n clasp: having a notch formed at its free endfori passage into the cylindrical hole in the other free end of saidsplit ring and for selectiveengagement with thefree end of said spring.p Y

\ In testimony whereof I aix my signature. 5 NICOLA C. PETRILLO.

a V:circumferential cylindrical hole j

